Cite
 

Meaning of pellicle mirror

pel'licle mir"ror

Pronunciation: [key]
— Photog. Photog.
  1. a fixed mirror in a single-lens reflex camera that reflects some of the light entering the lens to the ground-glass view screen while permitting most of the light to pass through to the film.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.